Aqua{6,6′-dimethoxy-2,2′-[ethane-1,2-diylbis(nitrilomethylidyne)]diphenolato}nickel(II)

Guo, Zhenghua; Li, Lianzhi; Xu, Tao; Li, Jinghong; Wang, Daqi

doi:10.1107/s1600536809034278

Cited by 6 publications

(5 citation statements)

References 6 publications

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“…The Ni complex 1 and its analogous structures have been previously reported by some groups. [35][36][37] The X-ray crystal structure analysis of the complex [NiLSm(NO 3 9) ). The Sm 3+ ion is ten coordinated and bound by four O atoms from the Schiff base L 2À ligand, and six from three bidentate NO 3…”

Section: Structuresmentioning

confidence: 99%

Bulk ring-opening polymerization (ROP) of L-lactide catalyzed by Ni(ii) and Ni(ii)-Sm(iii) complexes based on a salen-type schiff-base ligand

Xiao

Yan

et al. 2011

Polym. Chem.

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A monometallic (Ni 2+ , 1) and a bimetallic (Ni 2+ -Sm 3+ , 2) complexes based on the Salen-type Schiff-base ligand H 2 L (H 2 L ¼ N,N 0 -bis(3-methoxysalicylidene)ethylene-1,2-diamine) were synthesized and characterized by FT-IR, ESI-MS and X-ray crystallography. The catalysis results showed that the two complexes with different active species, could efficiently catalyze the bulk solvent-free melt ringopening polymerization (ROP) of L-lactide with moderate molecular weights and narrow molecular weight distributions. Especially, for the bimetallic complex 2, the involvement of rare ions effectively passivated the catalytic behavior on the ROP of L-lactide, while was in favor of the increase of polymeric molecular weights (M n ) and the polymerization controllability.

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Section: Structuresmentioning

confidence: 99%

Bulk ring-opening polymerization (ROP) of L-lactide catalyzed by Ni(ii) and Ni(ii)-Sm(iii) complexes based on a salen-type schiff-base ligand

Xiao

Yan

et al. 2011

Polym. Chem.

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“…In addition, several co-crystals of [Ni(o-van-en)] with various tin complexes were reported, e.g., [Ni(o-van-en)]⋅(H2O)⋅SnMe2Cl2 (WAVYOH)[17]. We note also the existence of a report on the synthesis and crystal structure of [Ni(o-van-en)(H2O)] (YUDFIN) with a pentacoordinated Ni(II) atom[30].…”

mentioning

confidence: 71%

“…As mentioned above, there are 55 hits in CSD for compounds containing the structural unit {Ni(o-van-en)}; in 54 cases the Ni(II) atom is in square coordination while in one hit (YUDFIN) unusual pentacoordinated Ni(II) atom is reported [30]. In all these complexes the smaller compartment is occupied by a square coordinated Ni(II) atom while the larger compartment is available for further use (Table S2).…”

Section: Crystal Structuresmentioning

confidence: 98%

On new solvatomorphs of the metalloligand [Ni(o-van-en)]

Vráblová

Tomás

Titiš

et al. 2020

Inorganica Chimica Acta

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The Schiff-base bis-(2-hydroxy-3-methoxybenzylidene)ethylenediamine, denoted H2(o-vanen), is a versatile two-compartment polydentate ligand that can bring different guests, such as a transition metal and a lanthanoid, into close proximity to produce novel complexes with potentially singular properties. The base, which is prepared by the condensation of o-vanillin with ethylenediamine, reacts with nickel(II) carbonate to yield a microcrystalline product which upon recrystallization from acetone, ethanol and isopropanol, yielded three solvatomorphs of [Ni(o-van-en)]. These products, the hydrate [Ni(o-van-en)]⋅nH2O (n = 1.16, 1), the ethanolwater solvate [Ni(o-van-en)]⋅H2O⋅EtOH (2) and the isopropanol-water solvate [Ni(o-vanen)]⋅H2O⋅iPrOH (3), all contain the molecular complex [Ni(o-van-en)], as characterized by single-crystal x-ray diffraction. The [Ni(o-van-en)] fragment, which has been developed as a metalloligand for the preparation of mixed-metal (Tr-Ln) complexes with novel magnetic properties, here forms solvatomorphs whose crystals display pronounced differences in morphology and stability. The Ni(II) center in each of the three solvatomorphs is coordinated by the (o-van-en) 2ligand in a square geometry with a cis-N2O2 donor set. Each solvatomorph contains water solvate molecules; and in addition, ethanol and isopropanol solvate molecules are present in 2 and 3, respectively. Full Interaction Maps were used for comparison of the intermolecular interactions, by way of understanding the factors leading to the different solvation behavior. A review of the known structures containing o-van-en fragments is used as a contextual backdrop for a discussion of the new solvatomorph structures. Calculations based on an energy-decomposition model are used to characterize the interactions within dimeric aggregates observed in the structures of 2 and 3.

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“…An aqueous solution (5 mL) of nickel( ii ) acetate tetrahydrate (0.8 mmol/0.0.199 g) was added to a suspension of H 2 L1 (0.8 mmol/0.263 g) in MeOH (10 mL). The resulting solution was heated at 80 °C for 30 minutes in a microwaves furnace and a reddish precipitate of c×omplex [Ni II L1]·(H 2 O) was formed, 26 collected and dried under vacuum.…”

Section: Methodsmentioning

confidence: 99%

Slow magnetic relaxation for cobalt(ii) complexes in axial bipyramidal environment: an S = 1/2 spin case

et al. 2022

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Aqua{6,6′-dimethoxy-2,2′-[ethane-1,2-diylbis(nitrilomethylidyne)]diphenolato}nickel(II)

Cited by 6 publications

References 6 publications

Bulk ring-opening polymerization (ROP) of L-lactide catalyzed by Ni(ii) and Ni(ii)-Sm(iii) complexes based on a salen-type schiff-base ligand

Bulk ring-opening polymerization (ROP) of L-lactide catalyzed by Ni(ii) and Ni(ii)-Sm(iii) complexes based on a salen-type schiff-base ligand

On new solvatomorphs of the metalloligand [Ni(o-van-en)]

Slow magnetic relaxation for cobalt(ii) complexes in axial bipyramidal environment: an S = 1/2 spin case

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